Cryo-EM structure of the human gamma-secretase complex at 3.4 angstrom resolution.
ELECTRON MICROSCOPY
| Sample |
|---|
| HUMAN GAMMA-SECRETASE |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 100, TEMPERATURE- 85, INSTRUMENT- FEI VITROBOT MARK IV, METHOD- BLOT FOR 4 SECONDS BEFORE PLUNGING, |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 159549 |
| Reported Resolution (Å) | 3.4 |
| Resolution Method | |
| Other Details | SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3061. (DEPOSITION ID: 13527). |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 38 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2014-10-02 |
| Temperature (Kelvin) | 85 |
| Microscope Model | FEI TECNAI F30 |
| Minimum Defocus (nm) | 700 |
| Maximum Defocus (nm) | 3200 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.7 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 81000 |
| Calibrated Magnification | 35714 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| CTF CORRECTION | CTFFIND | 3 |
| RECONSTRUCTION | RELION | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| EACH PARTICLE | ||||
